test the release candidate.. other versions had something wrong with them. 1.6.7 would randomly declare my sip trunk to my main switch as UNAVAILABLE and wouldnt pass the damn sip traffic until I stopped asterisk, waited 10 seconds and restarted it. Then it worked again for about 7 hours till it repeated the problem. I haven't had that problem with 1.6.2.8-rc1. Anything prior to 1.6.2.7 had some dtmf passthru bugs which might affect your customers and there was an issue where UDP ports werent getting free'd up which was stopping all calls dead in their tracks every 1000 calls.

Do you have the "easy" set of instructions to do this upgrade?
Anything else we should know before upgrading from 1.6.0.6 to 1.6.2.8-rc1

Regards,
Andrew

Is there a simply way to upgrade from asterisk 1.6.0.6 to 1.6.2.8rc1 besides loading centos 5.4 onto a new machine.

Thank you

building a new box isnt neccessary... but the mere fact you're asking indicates you dont understand the fundamentals to compiling and installing code. This means that its a long way away from 'simple'. The ISO did not even include the required -devel rpm's needed to compile asterisk. Whats worse is that if you dont get them all (say the 3 packages required to buid the res_snmp.so module) then you wont have compiled that module yet there was a pre-existing old-version module that is going to try to load and likely cause crashes (legacy wrong version of res_snmp.so for example).

so in short order you have to obtain from yum every devel package needed for each and every already-build module in /usr/lib/asterisk/modules/.

once this is done the standard installation instructions to installing asterisk from source apply (dont do make samples or you will lose your configs)